/*
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 * and open the template in the editor.
 */

/**
 *
 * @author Administrator
 */
public class Calc {
    
    /*
     * @author 苗志锋
     * @email java.miao.zhifeng@gmail.com
     */
    public int add(int a, int b){
        return a+b;
    }
    
    
    public int sub(int a, int b){
        return a-b;
    }
    
    
   

}
